Re: [OpenSBC] Peering Edge or Access Edge SBC's

[<sa...@ER...>]

Hi HTH

Could you publish your sipx network design.  Just the top level if this is
to much to ask?

I am about to set up a third OSBC.  Obvious to say can't find a howto for
this magic.

Warren Kreckler


----- Original Message ----- 
From: "ehernaez" <ope...@op...>
To: <ope...@li...>
Sent: Monday, December 24, 2007 3:54 PM
Subject: Re: [OpenSBC] Peering Edge or Access Edge SBC's


> {noformat}Warren,
>
> Yes, you are correct in concluding that you would need two OSBC
> instances in the scenario you laid out.  The instance that you use for
> SIP trunking to face your ITSP should not be the same instance that you
> are using for NAT traversal of  SIP UAs using upper registration to SIPX.
>
> In fact, it may even be necessary for you to have 3 instances of OSBC if
> you need to support DID providers that do not comply with SIP REFER.
> As you may know, calls transferred from the SIPX auto-attendant are
> referred to the relevant UA.  Since many ITSP do not honor the REFER
> message, we have found it necessary to run a dedicated OSBC instance as
> a media anchor to shield the ITSP from the referred calls.
>
>
> HTH{noformat}
>
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